// Numbas version: finer_feedback_settings
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"unitTests": [], "variableReplacements": [], "steps": [{"customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "variableReplacementStrategy": "originalfirst", "prompt": "<p>Given $x+\\var{a}=\\var{b}$, we subtract $\\var{a}$ from both sides to get $x$ by itself.</p>\n<p></p>\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: right;\">$x+\\var{a}$</td>\n<td>$=$</td>\n<td style=\"text-align: left;\">$\\var{b}$</td>\n</tr>\n<tr>\n<td style=\"text-align: right;\">$x+\\var{a}-\\var{a}$</td>\n<td>$=$</td>\n<td style=\"text-align: left;\">$\\var{b}-\\var{a}$</td>\n</tr>\n<tr>\n<td style=\"text-align: right;\">$x$</td>\n<td>$=$</td>\n<td style=\"text-align: left;\">$\\var{ans1}$</td>\n</tr>\n</tbody>\n</table>", "scripts": {}, "marks": 0, "type": "information", "unitTests": [], "variableReplacements": [], "showCorrectAnswer": true, "showFeedbackIcon": true}], "stepsPenalty": "0", "showFeedbackIcon": true, "customMarkingAlgorithm": "", "prompt": "<p>Given $x+\\var{a}=\\var{b}$, we can 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